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The electronic structure of Co/Cu(001) and Fe/Cr(001) magnetic multilayers has been investigated within the local density approximation combined with dynamical mean field theory. Our calculation shows enhanced density of states at the Fermi…

Strongly Correlated Electrons · Physics 2007-05-23 L. Chioncel , A. I. Lichtenstein

The frequency dependence of the interlayer conductivity of a layered Fermi liquid in a magnetic field which is tilted away from the normal to the layers is considered. For both quasi-one- and quasi-two-dimensional systems resonances occur…

Strongly Correlated Electrons · Physics 2009-10-31 Ross H. McKenzie , Perez Moses

Topological insulators are found in materials that have elements with strong spin orbit interaction. However, electron Coulomb repulsion also potentially generates the topological insulators as well as Chern insulators by the mechanism of…

Strongly Correlated Electrons · Physics 2014-07-01 Masatoshi Imada , Youhei Yamaji , Moyuru Kurita

Motivated by the recent experimental developments in van der Waals heterostructures, we investigate the emergent magnetism in Mott insulator - semimetal moir\'e superlattices by deriving effective spin models and exploring their phase…

Strongly Correlated Electrons · Physics 2024-11-05 M. A. Keskiner , Pouyan Ghaemi , M. Ö. Oktel , Onur Erten

We theoretically study the effect of the motion and the merging of Dirac cone on the interlayer magnetoresistance in multilayer graphene like systems. This merging, which could be induced by a uniaxial strain, gives rise in monolayer Dirac…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Mohamed Assili , Sonia Haddad

Understanding the interplay between magnetism and superconductivity is one of the central issues in condensed matter physics. Such interplay induced nodal structure of superconducting gap is widely believed to be a signature of exotic…

Quantum Gases · Physics 2018-12-12 Bo Liu , Peng Zhang , Ren Zhang , Hong Gao , Fuli Li

Diverse interlayer tunability of physical properties of two-dimensional layers mostly lies in the covalent-like quasi-bonding that is significant in electronic structures but rather weak for energetics. Such characteristics result in…

Materials Science · Physics 2019-04-03 Peiheng Jiang , Cong Wang , Dachuan Chen , Zhicheng Zhong , Zhe Yuan , Zhong-Yi Lu , Wei Ji

This Letter presents an investigation on the effects of mutual coupling in a metamaterial comprising two sets of electric-LC (ELC) resonators with different resonance frequencies. Through simulation and experiment, it is found that the two…

We report the first ab-initio study of the interlayer exchange coupling in Fe/c-FeSi/Fe sandwiches and Fe/c-FeSi multilayers. We perform several structural studies, which show the stability of the CsCl arrangement seen experimentally for…

Materials Science · Physics 2007-05-23 J. M. Alonso Pruneda , R. Robles , S. Bouarab , J. Ferrer , A. Vega

We study the role of diamagnetic effects on the transport properties of metallic magnetic multilayers to elucidate whether they can explain the Giant Magnetoresistance (GMR) effect observed in those systems. Realistic Fermi surface…

Materials Science · Physics 2007-05-23 W. Tavera , G. G. Cabrera

We analyze antiferromagnetism in $f$ electron superlattices. We show that the competition between the Kondo effect and the RKKY interaction in $f$ electron materials is modified by the superlattice structure. Thus, the quantum critical…

Strongly Correlated Electrons · Physics 2016-12-06 Robert Peters , Yasuhiro Tada , Norio Kawakami

We explored the magnetic behavior of a common two-phase nanomagnetic system by Monte Carlo computer simulation of a modified Heisenberg model on a 3D complex lattice with single- and cluster-spins. The effect of exchange coupling between…

Materials Science · Physics 2007-05-23 Y. Z. Shao , W. R. Zhong , G. M. Lin , X. D. Hu

The transmission through a magnetic layer of correlated electrons sandwiched between non-interacting normal-metal leads is studied within model calculations. We consider the linear regime in the framework of the Meir-Wingreen formalism,…

Mesoscale and Nanoscale Physics · Physics 2022-05-25 Andreas Weh , Wilhelm H. Appelt , Andreas Östlin , Liviu Chioncel , Ulrich Eckern

Ion bombardment has been shown to be capable of enhancing the interlayer exchange coupling in a trilayer system that exhibits giant magnetoresistance. We demonstrate that this phenomenon can be derived from the phase coherence among…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 Ching-Hao Chang , Tzay-Ming Hong

In this study, we explore the influence of interlayer exchange coupling on magnetization reversal triggered by femtosecond laser pulses in ferromagnetic spin valves. Our experiments, focused on femtosecond laser-induced magnetization…

In antiferromagnets, dipolar coupling is often disregarded due to the cancellation of magnetic moments between the two sublattices, leaving spin-wave dispersion predominantly determined by exchange interactions. However, antiferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2025-05-21 Jiongjie Wang , Jiang Xiao

We report on systematic ab-initio investigations of Co and Cr interlayers embedded in Fe(001)/MgO/Fe(001) magnetic tunnel junctions, focusing on the changes of the electronic structure and the transport properties with interlayer thickness.…

Materials Science · Physics 2013-05-29 P. Bose , P. Zahn , J. Henk , I. Mertig

The interlayer magnetoresistance $\rho_{zz}$ of the organic metal \cuscn is studied in fields of up to 45 T and at temperatures $T$ from 0.5 K to 30 K. The peak in $\rho_{zz}$ seen in in-plane fields, a definitive signature of interlayer…

Superconductivity · Physics 2009-11-11 John Singleton , PA Goddard , A Ardavan , AI Coldea , SJ Blundell , RD McDonald , S Tozer , JA Schlueter

We investigate the magnetic order in single crystalline EuCd$_2$Sb$_2$ thin films using a combined theoretical and experimental approach. Resonant elastic x-ray scattering experiments reveal a sharp magnetic peak at $q = (0, 0,…

Interlayer single particle tunneling between the $Cu-O$ layers suppress the in-plane short range magnetic order (which is modeled as spin density wave (SDW) insulator). Doping over the SDW state kills perfect nesting of the Fermi surface…

Condensed Matter · Physics 2016-08-31 Haranath Ghosh , M. Sardar
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